Improvement in grain-separators



, longitudinal section.

` UNITED STATES PATENT OFFICE.,

SANFORD ADAMS, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO JOELV NOURSE, OF SAME PLACE.

IMPROVEMENT IN GRAIN-SEPARATORS.

To all whom it may concern Be it known that I, SANFORD' ADAMS, of Boston, in the county of Suffolk, State of Massachusetts, have invented an Improvement in FanningMills; and l do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

Figure l is a longitudinal elevation. Fig. 2 is an end elevation. Fig. 3. is avertical Fig. 4 is a top or plan view. Fig. 5 is au end elevation of the vibrating feeder. Fig. 6 is an end elevation sl1ow ing the connection of the fan-shaft with the shaking hopper. Fig. 7 is a top or plan view of the separator. Figs. S and 9 are side views ot' the separator, showing the adjustable slats at two cxtreme positions.

Like letters represent like parts in all the figures.

The nature of my inventionconsists in constructing fanning or winnowing mills with an adjustable vibrating feeder that may be readily adjusted, giving more or less elevation to the feeder, by which device the 4mill is fed with regularity and will not be liable to choke or clog, thus enabling it to operate more perfectly also, by making an adjustable separator at the rear end of Jthe vibrating or swinging sieve, constructed with adjustable slats and frame, over the surface of which the grain will pass while the current ot' wind from the fan is operating on it, by which device the different grades of grain are separated and deposited in a receptacle by themselves, the principal object of which is to obtain the best and most perfect portion of the grain for sow ing.

a a is the frame. b is the drivingcrank. c is a vibrating disk or crank to vibrate the feeding-hopper and sieves. dis the cog-wheel that propels the fan. c e are connecting-rods that connect the vibrating disk with the shoe and the feeding-hopper. F is the fan. gis the vibrating feeding-hopper, which may be elevated more or less by means of the pivoted rods q q. (Shown in Fig. 5.) h is a parallel slide-track, upon which the hopper rests. i is a bracket, to which an elbow-lever is pivoted,

and connects the rod e with the disk c and the vibrating sieves s s. (Shown in Fig. l.) vj is the receiver and conductor of the first grade of grain that passes the slat a through the separator m. (See in Figs. l and 3.) k is the conductor of the second grade of grain. lis a slide-gate to the receptacle of refuse grain. 0 is a conductor from the receptacle p. m is the separator, constructed with any desirable number of slats, n 112W, and is attached to the chute or separator board by the :flexible joint r, so constructed that it may be raised or lowered; also, the slats are so pivoted to the frame of the separator that they may be adj usted toany angle desirable, as seen in Fig. 3.

Operation By turning the crank b, the working parts ot' the mill are set in motion, and the grain, being placed in the feeding-hopper g, which is made to vibrate by being connected with the disk c, will pass under the slide ze and over the perforated screen t, and all small grain through the perforated screen 'v and down to the separator fm, which is placed in the current of wind from the fan F, the slat n being set at a proper angle. The grain falling onto it. it'ofsuflieient weight and density, will pass through the opening in front of the slat n" and down the sieve s into the receiver and conductor j. All the foul seeds being separated by the sieve s, the grain delivered at j is a perfect article, free from foul seeds and valuable for sowing; but if the grain is light or imperfect in the least degree, the current of wind from the fanand the vibration 0f the sieves will cause it to slide over the front slat," n', to a2, which, being set at a greater angle, the current of wind from the fan will not be powerful enough to force it up the greater angle7 and it will pass down the sieve s to the conductor 7a, and each slat may have a conductor delivering a different quality of grain, if desirable, and the separator may be raised or lowered, swinging on the pivot r, by which means peas, beans, and various kinds of seeds may be separated with great advantage, and by the device of raising and lowering the feeding-hopper the mill is more regularly fed and operates more perfectly. The feedinghopper is raised or lowered by the pivoted arms or levers, one end being attached to the mill and the other to the slide-track h by means of screws for pivots, which may be screwed up so as to retain the elevation of the hopper at any desirable point7 as shown in Fig. 5.

What I claim as new, and wish to secure by Letters Patent, is-

l. The feeding-hopper g, constructed substantially in the manner described, and fr r the purposes set forth.

2. The pivoted arms or levers q q, iu combination with the slide-track 7L, for tlle purposes described.

3. The separator m, constructed and arranged substantially as set forth.

4. The receiver and conductorj, in combination with the sieve s and the slat nf, for the purposes described.

SANFORD ADAMS.

Witnesses:

A. S. WHEELER, E. WAsHBURN, J r. 

